leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

KVM: SVM: Return correct values in nested_svm_exit_handled_msr

Browse Source 
The nested_svm_exit_handled_msr() returned an bool which is
a bug. I worked by accident because the exected integer
return values match with the true and false values. This
patch changes the return value to int and let the function
return the correct values.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Joerg Roedel 2010-03-01 15:34:34 +01:00 committed by Avi Kivity
parent 0fc5c3a54d
commit d24778265a
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/x86/kvm/svm.c
View File

@ -1552,16 +1552,16 @@ static void nested_svm_unmap(struct page *page)
kvm_release_page_dirty(page);
}
static bool nested_svm_exit_handled_msr(struct vcpu_svm *svm)
static int nested_svm_exit_handled_msr(struct vcpu_svm *svm)
{
u32 param = svm->vmcb->control.exit_info_1 & 1;
u32 msr = svm->vcpu.arch.regs[VCPU_REGS_RCX];
bool ret = false;
u32 t0, t1;
int ret;
u8 val;
if (!(svm->nested.intercept & (1ULL << INTERCEPT_MSR_PROT)))
return false;
return NESTED_EXIT_HOST;
switch (msr) {
case 0 ... 0x1fff:
@ -1579,12 +1579,12 @@ static bool nested_svm_exit_handled_msr(struct vcpu_svm *svm)
t0 %= 8;
break;
default:
ret = true;
ret = NESTED_EXIT_DONE;
goto out;
}
if (!kvm_read_guest(svm->vcpu.kvm, svm->nested.vmcb_msrpm + t1, &val, 1))
ret = val & ((1 << param) << t0);
ret = val & ((1 << param) << t0) ? NESTED_EXIT_DONE : NESTED_EXIT_HOST;
out:
return ret;